Stanislaus National Forest · California

Bull Run Lake

3.5 mi of trail, end to end · native material surface · trail No. 19E02 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking, horse

Begins at the forest's mile 0, 38.4817, -119.9140 - no trailhead mapped Drive to where the trail begins

Mosquito Lakes Trailhead the Forest Service's write-up

The Mosquito Lakes Trailhead can be used to access Heiser Lake and Bull Run Lake . From Bull Run Lake, the trail continues to the Stanislaus Meadow Trailhead parking area.

Shortly after the trailhead, the Emigrant/Mokelumne Coast to Crest Trail (MCCT) branches off to the right and a short distance later the Mosquito Lakes to Pacific Valley/MCCT Trail branches off to the left. The Mosquito Lakes to Pacific Valley portion of the MCCT was completed in 2015; since it is a new trail, it may not be shown on some maps. As of September 2020, the map on this web page did not show the trail; however, trailhead symbols show the beginning and ending points. Please visit the Mokelumne Coast to Crest Trail website for more information and a map.

Lat/Long: 38.515315, -119.914940

Restrictions Please take a moment to read the <a href="https://www.fs.usda.gov/detailfull/stanislaus/specialplaces/?cid=stelprdb5361242"><strong>Wilderness Regulations</strong></a>.

This trailhead on fs.usda.gov

Stanislaus Meadow Trailhead the Forest Service's write-up

This trailhead can be used to access either Bull Run Lake or Heiser Lake . Due to the granite surface, the trail may be hard to find in some areas. If going to Bull Run Lake, creek crossings are fairly difficult. The trail continues to the Mosquito Lakes Trailhead .

Elevation is about 7907 feet. Lat/Long: 38.5064, -119.9419

Restrictions Please take a moment to read the <a href="https://www.fs.usda.gov/detailfull/stanislaus/specialplaces/?cid=stelprdb5361242"><strong>Wilderness Regulations</strong></a>.

This trailhead on fs.usda.gov

Every trail in Stanislaus National Forest

All 441 trails in Stanislaus National ForestFind a trailForest on fs.usda.gov

About this trail's facts

The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.